Improvement in machines for re-pressing brick



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I i 12 d i .4 i i hd .1 Eu 1 i 1 i -I. GREGG, Jr. Machine forRe-pressing Brick.

No. 197,628; Patented Nov.- 27, 187?.

NPETERS, Pumq-u'rnowmzn. WASHINGTON. n c.

" jIsAAC GREGG, JR, on rriinnnnnrnrn, rmsy'wlsny i' NY! PROVEM ENT mMACH'INESEFORZ'RE-PRES'SI'NG @BRIGK.

v Specification forming part of LettersPateiit No. 197,628,datedNovemb'e'r 27,1577 applicatiorifild September 24,1877.

To all whom it may concern: I

Be it known that I, IsAA'c-GRE GG, J r.- of the city and county ofPhiladelphia, in the. State of Pennsylvania, have invented certain newand useful Improvements in Machines for Be- Pressing-Brick, of whichthe'following is a specification:

The object of my inventionis to provide a simple, convenient, andeconomical apparatus for repressing brick, tile, terra-cotta ware, andother articles made from clays, including fire-brick clay, by'theapplication of manual power; to which end myimprovements consist in thecombination of an anvil, a'mold-box placed ed gewise thereon, and apressure-plate, by which pressure is applied to the face of the brick orother article in the mold-box.

My improvements further consist in the combination of a stationaryanvil, a mold-box, movable thereon by a rock-shaft, lever, andconnecting-links, to admit of the insertion of the article to berepressed and the removal of the same when finished, and a screw andpressure-plate, for compressing the material within the mold-box.

My improvements further consist in the combination, with the anvil andmold-box, of an improved device for lubricating the latter, all ashereinafter more fully set forth.

In the accompanying drawings, Figure 1 is an endview, partly in section,of are-pressingmachine embodying my improvements; Fig. 2, a verticalsection of the same at the line 00 x of Fig. 1; and Fig. 3 a horizontalsection of the same at the line y y of Fig. 1.

The frame of my improved machine consists of a substantial base orbed-plate, A, which may be mounted on rollers a to facilitate themovement of the machine from place to place, two vertical standards orhousings, A and a transverse cap-piece, A A vertical anvil, B, issecured upon the bed-plate A midway between the housings A its uppersurface corresponding in length and width with the face of the brickwhen finished, and being truly plane, and preferably faced with steel. Amold-box, 0, open, both at top and bottom,

7 is fitted'accurately to the anvil B, so as to be movable thereonwithout undue friction, and is provided with side lugs 0, which slideupon two vertical guide-rods, O, secured at bottom to the bed-plate, andat top to the cap-plate, on each'side of the anvil,'respectively. Themold-box is preferably lined with steel,'and is' set edgewise-that is,having its open ends corresponding in length with the face of thebrick-so that'pressure will beimparted thereto means I am enabled toinsure a high degree of finish to the face of the brick, as well as aings in the housings A and carries two arms,

d, pivoted at their outer ends to links c," which are, in turn, pivotedto the mold-box O. The arms d are extended outward upon the oppositeside of the rock-shaft D and Se: cured to a counter-balance, d, theweight of which is to be substantially the same as the combined weightsof the mold-box and links. The rock-shaft D is vibrated to raise andlower the mold-box by a hand-lever, D upon one of its ends, moving alonga segment, D and in order to assist in the movement of the mold-box byimparting initial momentum to the hand-lever, I moimt the lever looselyon the rock-shaft, and provide it with a shouldered hub, dflwhichengages a similar hub, d secured upon the rock-shaft in the manner of aclutch-coupling, the projection of the hub 01 being less incircumferential length than that of the fixed hub 61 so as to admit ofan initial movement of the hand-lever without movement of the rock-shaftand its connections. A foot-lever might be employed instead of thehand-lever, if desired, without changing the principle of operation. Forthe purpose of lubricating the interior surface of the mold-box at eachmovement thereof, I secure upon the outside of, and entirely around, theanvil B, below its top, a lubricating-pad, 1), formed of sheep-skin orother material suitable for receiving and holding a lubricant, whichlubricant is supplied to the mold-box at each passage of the latter overthe pad b. In order to preserve the pad and lubricant from the injuriouseffects of dust, &c., I prefer to attach to the bottom of the mold-box adepending casing or flange, 0 which incloses the pad on all sides whenthe mold-box is at the upper extremity of its traverse, and effectuallyprevents the access of foreign matters.

at right angles to its thickness. By this As the pad would in such casebe inaccessible for the supply of lubricant without the removalof themold=box or the casing cfi I provide oil-channels 03in the casing. c sorin the mold-box, through which lubricating material may be supplied, asrequired.

Pressure is applied to the brick or other material in the mold-box by apressure-plate, E,

which slides on the guide-rods O, and is op-- erated by a screw, E,engaging a nut, E in the cap-plate. Weighted. arms E for ro tating thescrew by hand are secured upon its top, and at its lower end rotatesfreely in a recess, in the pressure-plate, so as to raiseand;

lower without rotating the latter. The pressure-plate is provided with asuitable facingpiece, 0, fitting neatly within the mold box 0, andhaving either a, plain surface or being provided with dies for recessingor indenting, as maybe desired. 7

, In the operation of the machine, the brick or other article to bere-pressed is .placedupon the ,anvil, and held there while the mold-boxis raised by the hand-lever andits connections into the position showninthe drawings, and pressure is then applied by the screwandpressure-plate. The latter being then elevated themold-box is loweredand the fini shed brick or other material removed. A table, F, securedupon one of the housings, A is provided for greater convenience inhandling the articles operated on.

I claim as my invention and desire to secure by Letters Patent 7 1.;Thecombination,in a repressing-ma chine, of an anvil, a mold=box placededgewise thereon, and a pressure-plate acting on the brick within themold-box at right angles to its thickness, substantially as. set forth.

2. The combination, in a re pressing machine, of a stationary anvil, amold-box moving thereon, and a pressure-plate and screw, substantiallyas set forth.

3. The combination, in a re-pressing machine, of a stationary anvil, alubricating-pad rock-shaft, with a limited range of radial motion,substantially as set forth.

ISAAC GREGG, JR;

Witnesses J SNowDnN BELL, GEO. A. VAILLANT.

